Studies regarding the effects of biorhythms on the human condition are still conducted.

Statistics regarding the effects of piracy are difficult to determine.

There is very little actual data available regarding the effects of different food webs, but theory helps us in this area.

It recommended no action be taken until there was several years of evidence regarding the effects of the changes adopted.

Additional information regarding the side effects of the treatment is also obtained.

However, researchers hold contrary opinions regarding the effects of long-term administration.

Concerns regarding the long-term effects of benzodiazepines have been raised since 1980.

More study needs to be done regarding the effects of the Sli.

There is conflicting data regarding the effects of music on aerobic performance.

He has carried out controversial research regarding the effects of violent video games on children, and reports for parents related to this.